7WS Statistic Review

What is a survey?

• A test that you get graded on

• A method of collecting information to interpret data

• A set of questions that cannot be reviewed after they have been answered.

To get valid results, a sample must be...

• biased

• unbiased

Simple random sample and systematic random sample are two types of ...

• biased samples

• unbiased samples

To determine if my students like Math, I surveyed every 3rd student that walked into my classroom. This is an example of a ...

• simple random sample

• systematic random sample

• convenience sample

• voluntary response sample

Find the mean of the following numbers.

58, 38, 54, 48, 26, 36

• 43.3

• 20

• 10

• 12

In order to find me, you need to put the data in order from least to greatest or greatest to least, and find the middle number.

• Mean

• Range

• Median

• Mode

What do you do if you have more than one median?

• Add middle numbers and multiply by 2

• Add middle numbers and divide by 2

• Subtract middle numbers and divide by 2

• I don't know

Which interval shows the greatest number of pets?

• 15-19
• 0-4
• 5-9
• 10-14

Tags

CCSS.HSN.VM.C.6

Elliot says almost everyone arrived at the party after 10:00 P.M., but Nancy thinks most people came earlier. When did a majority of the people arrive? 

• 7:00-7:59 P.M.
• 8:00–8:59 P.M.
• 9:00–9:59 P.M.
• 10:00–10:59 P.M. 

Tags

CCSS.4.MD.B.4

This is a histogram

• true
• false